128494380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:260

約数の個数: 192

約数和(自身を含む): 433520640

約数和(自身を除く): 305026260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 71, 84, 93, 105, 124, 139, 140, 142, 155, 186, 210, 213, 217, 278, 284, 310, 355, 372, 417, 420, 426, 434, 465, 497, 556, 620, 651, 695, 710, 834, 852, 868, 930, 973, 994, 1065, 1085, 1302, 1390, 1420, 1491, 1668, 1860, 1946, 1988, 2085, 2130, 2170, 2201, 2485, 2604, 2780, 2919, 2982, 3255, 3892, 4170, 4260, 4309, 4340, 4402, 4865, 4970, 5838, 5964, 6510, 6603, 7455, 8340, 8618, 8804, 9730, 9869, 9940, 11005, 11676, 12927, 13020, 13206, 14595, 14910, 15407, 17236, 19460, 19738, 21545, 22010, 25854, 26412, 29190, 29607, 29820, 30163, 30814, 33015, 39476, 43090, 44020, 46221, 49345, 51708, 58380, 59214, 60326, 61628, 64635, 66030, 69083, 77035, 86180, 90489, 92442, 98690, 118428, 120652, 129270, 132060, 138166, 148035, 150815, 154070, 180978, 184884, 197380, 207249, 231105, 258540, 276332, 296070, 301630, 305939, 308140, 345415, 361956, 414498, 452445, 462210, 592140, 603260, 611878, 690830, 828996, 904890, 917817, 924420, 1036245, 1223756, 1381660, 1529695, 1809780, 1835634, 2072490, 2141573, 3059390, 3671268, 4144980, 4283146, 4589085, 6118780, 6424719, 8566292, 9178170, 10707865, 12849438, 18356340, 21415730, 25698876, 32123595, 42831460, 64247190, 128494380]

約数ペア:

[(1, 128494380), (2, 64247190), (3, 42831460), (4, 32123595), (5, 25698876), (6, 21415730), (7, 18356340), (10, 12849438), (12, 10707865), (14, 9178170), (15, 8566292), (20, 6424719), (21, 6118780), (28, 4589085), (30, 4283146), (31, 4144980), (35, 3671268), (42, 3059390), (60, 2141573), (62, 2072490), (70, 1835634), (71, 1809780), (84, 1529695), (93, 1381660), (105, 1223756), (124, 1036245), (139, 924420), (140, 917817), (142, 904890), (155, 828996), (186, 690830), (210, 611878), (213, 603260), (217, 592140), (278, 462210), (284, 452445), (310, 414498), (355, 361956), (372, 345415), (417, 308140), (420, 305939), (426, 301630), (434, 296070), (465, 276332), (497, 258540), (556, 231105), (620, 207249), (651, 197380), (695, 184884), (710, 180978), (834, 154070), (852, 150815), (868, 148035), (930, 138166), (973, 132060), (994, 129270), (1065, 120652), (1085, 118428), (1302, 98690), (1390, 92442), (1420, 90489), (1491, 86180), (1668, 77035), (1860, 69083), (1946, 66030), (1988, 64635), (2085, 61628), (2130, 60326), (2170, 59214), (2201, 58380), (2485, 51708), (2604, 49345), (2780, 46221), (2919, 44020), (2982, 43090), (3255, 39476), (3892, 33015), (4170, 30814), (4260, 30163), (4309, 29820), (4340, 29607), (4402, 29190), (4865, 26412), (4970, 25854), (5838, 22010), (5964, 21545), (6510, 19738), (6603, 19460), (7455, 17236), (8340, 15407), (8618, 14910), (8804, 14595), (9730, 13206), (9869, 13020), (9940, 12927), (11005, 11676)]